Mast or antenna supporting device



June 1951 R. J. BALLAM ETAL 6,460

MAST OR ANTENNA SUPPORTING DEVICE Filed Feb. 2, 1950 INVENTORS Patented June 12, 1951 UNITED STATES, PATENT OFFICE Richard J. Ballam and Viljo W. Friberg, Gardner, Mass.

Application February 2, 1950, Serial No. 141,953

permanently support a mast, pole, or antenna on a roof whether peaked, flat or even in a valley. The principal object of the invention resides in the provision of a bracket comprising .a pair of articulated open base frames, there being a pair of spaced arms on each frame, said arms being pivoted thereto and'rising therefrom and joining at a position remote from the said frames 'and above the same, said arms being connected by means of a master retaining device including a U-shaped element pivoted to the ends of the arms and mounting a U-bolt; the provision of a bracket as above stated including a mast butt end supporting plate pivoted generally between the frames and having thereon another U-bolt or like device for retaining the mast thereon, whereby the bracket may be placed in position as desired and the mast butt end plate pivoted around to a position where the end of the mast may be applied thereto as from the ground, then the mast may be raised by swinging up on its supporting plate and into the U-shaped element at the ends of the arms, so that the mast is firmly secured thereto by U-bolts.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. 1 is a view in side elevation of a bracket according to the present invention and showing the mast broken away;

Fig. 2 is a view in front elevation of the bracket of Fig. 1, parts being broken away;

Fig. 3 is a top plan view of the bracket, the mast being in section; and

Fig. 4 illustrates the manner in which the mast is applied to the butt end supporting plate and then raised.

This invention comprises a pair of open base frames which are generally indicated at H] and I2. Each frame is made up of a pair of angle irons l4, l6 interpivoted by any desired means but in this case by a cross rod l8. The frame members l4, it are connected at the outer ends by straps 20. All of these members with the exception of the cross rod It; may be provided with holes for the reception of fasteners.

The outermost edge of each frame is provided with a pair of swinging arms, these being indicated at 22 and 24. These arms are freely swingable on the frames by any means desired and extend upwardly as shown in Figs. 1 and 2 to a point where they are adjustably connected 4 Claims. ('Cl. 248-43) together by nuts and bolts or the like 26. Between the two pairs of arms there is pivoted a U-shaped mast supporting element 28 by means of its end flanges. Between these flanges there is provided a U-bolt 30 which coacts with the element 28 to adjustably support the mast at a substantial distance from the base.

Between the interconnected ends of side pieces l4 and I6 there is a mast butt end supporting plate 32 separate from the base frames l0 and I2 and mounted to swing relative to the frames on the rod is by cars 34. This plate is provided with a flange 36 which in turn is provided with a U-bolt 38 similar to that at 30 for retaining the butt end of the mast.

The device is positioned where desired on a roof of any degree of pitch or on a fiat roof, or even on a support which may be in the form of a valley, see the dotted lines at 40 in Fig. 1. The mast butt end supporting plate is then pivoted down with reference to the base frames l0 and I2 and the mast 42 is presented to this plate through the U-bolt 38 and clamped thereto in the usual manner of this type of bolt. The mast is then raised to the Fig. 1 position and the U-' bolt 3-0 applied thereto.

Various braces may be utilized if desired, such as extra arms, or connecting members or guy wires. Also the arms 22, 24 may be provided with holes or slots as at 44 for accommodating roofs of different degrees of pitch. It is not always necessary to bolt the frame down on the roof as guy wires in most cases will perform this function satisfactorily.

Having thus described our invention and the advantages thereof, we do not wish to be limited to the details herein disclosed otherwise than as set forth in the claims, but what we claim is:

1. A mast bracket comprising a pair of base frames pivotally connected to each other at their meeting ends and adapted to be angularly adjusted through a wide angle to permit the bracket to be supported on peaked, flat or depressed roof surfaces, a mast end support pivoted to but separate from the base frames and extending substantially across the base frames adjacent the pivot line therebetween, a pair of upwardly spaced arms rising from each of the base frames and pivoted to the base frames at points remote from the mast end support, and having their other ends pivoted together, and separate mast retaining means pivotally secured between said upright arms adjacent the upper portions thereof, and being freely swingable with reference to said upright arms and being unconnected to said base frames except through said upright arms.

2. A mast bracket comprising a pair of base frames pivotally connected to each other at their meeting ends and adapted to b angularly adjusted through a wide angle to permit the bracket to be supported on peaked, flat or depressed roof surfaces, a mast end support pivoted to but separate from the base frames and extending substantially across th base frames adjacent the pivot line therebetween, a pair of upwardly spaced arms rising from each of the base frames and pivoted to the base frames at points remote from the mast end support, and having their other ends pivoted together, and separate mast retaining means pivotall secured between said upright arms adjacent the upper portions thereof, and being freely swingable with reference to said upright arms and being unconnected to said base frames except through said upright arms,

the mast end support being pivoted on the base frames and freely swingable with reference thereto.

3. A mast bracket as set forth in claim 2, wherein the mast end support comprises a fiat plate pivotally connected to the bas frames and swingable with reference thereto.

4. A mast bracket comprising a pair of base frames pivotally secured at their ends to a mast,

nd support and adapted to be angularly adjusted through a wide angle to permit the bracket to be supported on a peaked, flat or depressed roof surface, said mast end Support extending substantially across the base frames between said ends, a pair of upwardly spaced arms rising from each of the base frames and pivoted to the base frames at points remote from the mast end support, and having their other ends pivoted together, and separate mast retaining means pivotally secured between said upright arms. adjacent the upper portions thereof, and being freely swinga-ble with reference to said upright arms and being unconnected to said base frames except through said upright arms.

RICHARD J. BALLAM.

V'ILJO W. FRIBERG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,544,656 Pusey Sept. 22', 1925 1,672,625 Rose June 5, 1928 1,680,050 Keppens Aug. 7, 1928 1,722,352 Rawley July 30, 1929 2,357,165 Brady Aug. 29, 1944 2,439,062 Shur Apr. 6, 1948 FOREIGN PATENTS Number Country Date 258,680 Great Britain Sept. 29, 1926 

